hypacrosaurus altispinus - hadrosaur - late cretaceous
this handsome fella was named for the tall neural spines that make up the meaty hump on his back! fossilized nests of hypacrosaurus show they grew about as fast as todays ratites (i.e ostriches, emu, cassowaries) in order to outpace their tyrannosaurid predators! sub-adult tyrannosaurs Probably weren't too keen on getting crushed by 4 tonnes of Beast.
higher resolution version under the cut!
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